Frequently Asked Questions



Sleeping Child with a Zizzz Baby Sleeping Bag

What should my child wear inside his Zizzz baby sleeping bag?

We advise parents to dress their baby in pyjamas made of natural, breathable materials. During particularly cold periods, put an extra layer on your baby.

What is the ideal temperature for my baby's room?

The ideal temperature for a baby’s room lies between 16º and 22ºC.

When I put my baby to bed, should I use a blanket or a baby sleeping bag?

We recommend that you use a baby sleeping bag. It is the safest and most comfortable way for a baby to sleep.

It is the most comfortable way, as babies can’t kick off a sleeping bag, so there is no risk of them uncovering themselves and waking up from the cold. It is the safest way, because babies cannot suffocate in a baby sleeping bag; unlike a blanket, a correctly-sized bag will never smother the baby. In addition, the repeated use of our baby sleeping bag provides your baby with a recognizable sleep environment, which has a relaxing effect. This feeling of familiarity will, in turn, help them establish a sleeping routine, even when they are not in their own bed.

We recommend our blankets for other uses, too. You can use one keep your baby warm when you are carrying them or when you take them for a walk in a buggy.

Why don’t your baby sleeping bags have sleeves?

Our bags don’t have sleeves to make sure enough air can circulate and to avoid overheating, which can be a cause of Sudden Infant Death Syndrome (SIDS). If babies sleep under a blanket they will normally keep their arms uncovered, just like we do. We recommend layering garments to adapt your baby to their room’s temperature. The best way to see if they are warm is to put your hand on their chest or behind their neck. Babies’ hands can feel a bit cold because of poor circulation in the first 12 months. Don’t worry! This is normal.

How do I take care of my Zizzz sleeping product?

You can wash Zizzz products at 30ºC on your washing machine’s wool program. Remember to use a wool detergent. Do not put Zizzz sleeping products in the dryer.

Can I use Zizzz sleeping products for a baby with allergies or eczema?

Absolutely! At Zizzz, we only use natural materials: Swisswool and organic cotton, both of which are hypoallergenic.  Skin allergies are often linked to chemical and toxic residues in fabrics. The wool filling in our sleeping bags comes from sheep raised in the Swiss Alps. No pesticides are used on our sheep. The inner lining of our baby sleeping bags is made from organic cotton, which we use to ensure that there is no chance that pesticides come into contact with your baby.

What is the TOG value of a Zizzz baby sleeping bag or blanket?

The textile industry uses TOG values as an indicator of a product’s insulation power. You’ll often see TOG values listed on baby sleeping bags made of polyester. We don’t believe it’s very useful, since our products are breathable and help to regulate your baby’s body temperature naturally.

However, if you twist our arm, our TOG value is roughly 2.5.

Until what age can a baby/child sleep in a baby sleeping bag?

Our baby sleeping bags come in three different sizes. Our largest sleeping bag is for children from 2 to 4 years; the smallest size is for the period of 0 to 6 months. During their first six months, babies grow very quickly, which is why the use period of our smallest model is relatively short. Our second size is for 6 to 24-month-old babies. We don’t make our bags too big, because then they essentially become a blanket.

This defeats the entire purpose of a baby sleeping bag, which is to ensure that the baby can’t smother itself or kick the sleeping bag off.

How many bags do you recommend?

It is best to have two baby sleeping bags. This way you always have a back-up when one is in the washing machine.

Can I use your baby sleeping bag all year round?

Yes. Our bags are designed to be used year-round in houses with temperatures between 16° and 22°C. So, it’s best to avoid using them on the hot summer days, when you sleep yourself without your duvet.

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Man and child underneath a Zizzz duvet

What is the difference between wool, down and synthetics?

Down and synthetics are primarily insulators - they keep the body hot and don't release heat. During the night, these insulators raise our body temperature, which makes us feel hot. So, we either wake up fully or toss and turn to cool off. If you ever woke up feeling sweaty, this is likely why.

Wool is not just an insulator; it also acts as a temperature regulator. Wool naturally absorbs and releases moisture to either cool or warm your body. You get warm quickly when you sleep in wool, but thanks to the fabric’s exceptional breathability, you do not overheat.

What are the advantages of a Zizzz duvet with Swisswool?

Our Duvets with Swisswool are light and airy. They provide a very comfortable sleeping climate all year round. The unique temperature regulating qualities of wool will help you to wake up fresh every morning.

Wool is a naturally hypoallergenic, highly- breathable and it doesn't attract dust. Down and feather tend to attract dust and dirt, as well as dust mites. Dust mites do not like wool because of the way wool breathes. The wool in the duvet stays drier than other fillings. The lower the humidity, the less comfortable the environment for dust mites.

Our duvet is also machine-washable.

Is a duvet with Swisswool itchy?

No, the Swisswool itself is not itchy. On top of that our Swisswool is covered with a very fine, fair-trade cotton batiste. It has a very soft and smooth feel.

Can I wash my Zizzz Swisswool duvet?

Yes, you can wash a Zizzz Swisswool duvet in your washing machine with absolutely no problem. Just be sure to use the wool program and a wool detergent.

The only thing you should not do is using a dryer. Wool doesn’t like that.

Do you have different weights?

All our duvets are filled with 280g/sqm Swisswool. This is an average weight.

For most people living in a house with central heating, it will be ideal all year round. Of course, those really hot summer nights when you sleep without anything are an exception.

Do you have different sizes?

We currently have two sizes:

• 150x200 cm, this is a general European size for a mattress 90 cm wide.
• 160x210 cm, this is a standard Swiss size for a mattress 90 cm wide.

If you have a two-person mattress, we advise buying two one-person duvets. You will both sleep better, since your partner can’t pull the duvet to his or her side anymore.

Where are your duvets made?

Our Zizzz duvets with Swisswool are made in Portugal.

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What is Swisswool made of?

Swisswool is made from 88% virgin wool from Swiss sheep. The other 12% is corn fibres. They are used to strengthen the wool and make it easily washable.

What is the difference between Swisswool and a polyester filing?

Swisswool breathes and wicks moisture away. This helps your baby to regulate their body temperature and is important for comfortable sleep. A breathable baby sleeping bag allows air and moisture to pass straight through it, qualities that help keep your baby's body at the right temperature so he doesn't wake up at night. The result is better, deeper and more relaxed sleep, thanks to Zizzz.

Polyester is a plastic fibre made from oil, which lacks the same capacity to absorb moisture. When moisture stays close to the body, it results in a clammy feeling. Research has shown the superior qualities of wool as a bedding material.

What are the characteristics of Swisswool?

Swisswool is:

- breathable
- helps to regulate body temperature
- sustainable
- 100% Natural
- toxin-tested
- hypoallergenic
- naturally resists the build-up of odours
- machine washable at 30°

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Two white Zizzz Packages

Can I buy a gift and have it sent it to a friend?

Yes. You just have to choose a product, enter your billing information and the shipping address of the person you would like to send it to. We can even include a gift receipt and special message (gift message only available in Switzerland). Just send an e-mail with your order confirmation number to

To which countries do you ship?

Zizzz delivers in the following countries:

Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom.

How does your gift card work?

When you buy a gift card, you will receive a PDF file with a unique code. The person you give this code to can spend it on our website for the amount you have defined.

I am a retailer and I would like to sell Zizzz products, what should I do?

Please contact us at

Is it secure to pay on the Zizzz website?

Our e-commerce system uses SSL (Secure Sockets Layer) - the industry standard for encryption technology used to create a secure transaction environment for commerce on the Internet. If your browser and local network support the use of encrypted data transmissions, our Secure Checkout mode locks all information (i.e.: your credit card number) passed from you to ZIZZZ in an encrypted envelope, making it extremely difficult to be intercepted by an unauthorized party. SSL technology is compatible with most browsers.

What are the accepted payment methods?

We accept Visa, MasterCard and PayPal. Swiss clients can also use PostFinance to pay. If are uncomfortable paying online, you can also pay by bank transfer. As soon as we have received the amount, we will send the goods you bought.

I like Zizzz products, could you inform me about Zizzz products in the future?

Of course! Please enter your address details or email on the contact page and we will keep you informed about our newest products, promotional offers and news.

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White Zizzz carton package

How long will it take for my goods to be delivered?

The delivery time depends on the country in which you live:

- Switzerland: 2-3 working days
- Germany: 2-3 working days
- all other EU countries: 4-6 working days

Please note that the mentioned delivery times are only indicative.

Who delivers my goods?

In Switzerland, we work with the Swiss Post for all our deliveries. We use Amazon for our logistics in all EU countries. Amazon uses well-known carriers such as DHL, TNT and MRW for the delivery.

Do you deliver for free?

Yes. We ship all our goods delivered in the EU and Switzerland free of charge.

What is the Zizzz return policy?

We’re proud of our high-quality products. If you are not satisfied, you can return a product within 15 days if it is not used or damaged. We will credit payment for products returned within 15 days of the purchase date in the same form as the original payment type.

Unless the return is due to a manufacturing defect, you have to pay for shipping. These terms are only valid if you bought a product directly from our website.

How to return a product?

Return procedures depend on your country of residence. If you would like to return a shipment, please write to and we will send you detailed instructions.

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